Question

Let functions f and g be defined over the real numbers as f(x)=x+3 and g(x) = 4x. It follows that f(g(x)) = ?

F. 12x
G. 4x+3
H. 5x+3
J. 4x² +3
K. 4x² + 12x

Answer 1

I think it is k

Explanation:

x+3(4x)

4x^2 + 12x

I am sorry if this is wrong